TI-2026-80155 Aliases CVE-2026-116136 GHSA-gjpq-2gcq-78q9

ProjectSend Incorrect Authorization via File Version Linking

LOW 26CWE-863Published 2026-10-25 · Updated 2026-10-29

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: Present
Impact type: Security bypass
Confidentiality · integrity · availability: High · Low · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.

Summary

ProjectSend from 2.0.0 through 2.7.1 contains incomplete authorization in FileVersions::link() that lets staff users share files they should not be able to share. An authenticated staff user with low privileges can link their file onto an intermediate revision or assign out-of-scope clients, causing moveAssignmentsToRoot() to expose protected original files to unauthorized clients. The flaw is classified as CWE-863.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

ProjectSend 2.0.0 through 2.7.1 contains an incomplete authorization vulnerability in FileVersions::link() that allows staff users to share files without authorization by linking file versions. Attackers can link their file onto an intermediate revision or assign out-of-scope clients, causing moveAssignmentsToRoot() to expose protected original files to unauthorized clients.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00202 10th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
ProjectSend	ProjectSend	2.0.0 – 2.7.1	—	No fix listed	CNA

ProjectSend VendorProjectSend Affected 2.0.0 – 2.7.1 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:projectsend:projectsend::::::::	—	—	ProjectSend

cpe:2.3:a:projectsend:projectsend:*:*:*:*:*:*:*:* Versions — — ·ProjectSend

Remediation

The sources list no fixed version for ProjectSend.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

2026-10-25 Threatist record created from CVE-2026-116136
2026-10-26 Priority changed: MEDIUM → LOW
2026-10-27 Alias added: GHSA-gjpq-2gcq-78q9
2026-10-29 CISA SSVC decision points changed

References

Patch 1

Patch Commit

Other 3

TI-2024-10826 ProjectSend Unauthenticated Configuration Modification KEVCVSS 3.1CRITICAL 9.8
TI-2023-30263 ProjectSend r1605 Remote Code Execution via File Extension Manipulation CVSS 4.0HIGH 8.7
TI-2026-76153 ProjectSend users API flaw lets token holders take over accounts CVSS 4.0HIGH 8.6
TI-2023-30213 ProjectSend r1605 Insecure Direct Object Reference File Download Vulnerability CVSS 4.0HIGH 7.1
TI-2014-07764 Unrestricted file upload vulnerability in process-upload.php in ProjectSend (formerly… CVSS 2.0HIGH 7.5
TI-2023-30188 ProjectSend r1605 CSV Injection via User Account Export Functionality CVSS 4.0MEDIUM 6.2

See all 34 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences